. The depths of the ocean : a general account of the modern science of oceanography based largely on the scientific researches of the Norwegian steamer Michael Sars in the North Atlantic. "Michael Sars" North Atlantic Deep-sea Expedition (1910); Oceanography; North Atlantic Ocean. GENERAL BIOLOGY 765 The study of numerous samples taken from the fish-stock Age-com- of a certain area may aim at ascertaining the age-com- tSock^of position of that stock, and from the results the follow- fishes. ing main points in the natural history of the fish may be elucidated: (i) the age at which mat
. The depths of the ocean : a general account of the modern science of oceanography based largely on the scientific researches of the Norwegian steamer Michael Sars in the North Atlantic. "Michael Sars" North Atlantic Deep-sea Expedition (1910); Oceanography; North Atlantic Ocean. GENERAL BIOLOGY 765 The study of numerous samples taken from the fish-stock Age-com- of a certain area may aim at ascertaining the age-com- tSock^of position of that stock, and from the results the follow- fishes. ing main points in the natural history of the fish may be elucidated: (i) the age at which maturity occurs; (2) the. A B Fig. 560. Two scales of fi\'e-year-old herrings. A, growth under normal conditions ; B, abnormal growth in the third zone. duration of life ; and {3) the variations in the age-composition and magnitude of the fish-stock. Studies of this kind have shown us that various species. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Murray, John, Sir, 1841-1914; Hjort, Johan, 1869-; Appellöf, Jakob Johan Adolf, 1857-; Gran, H. H. (Haakon Hasberg), 1870?-; Helland-Hansen, Bjørn, 1877-. London : Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherlondo, bookyear1912
